Just ran across this video, apparently it is 3 years old. Considering that 1200 (74ci) Sportsters are pretty damn fast, this thing must be amazing. Looking through comments on various related videos, the bike is a 1993 model and eventually dyno'd at 142 rwhp / 181 tq. Also stated as his regular street/commuter bike.

i had one a few years back, had the stroker kit, large cyls, diff cams, etc-it was bad azz for a Harley, i could carry the wheels in pretty much any gear-downside was i destroyed the trans a couple times, found some of the weak points, also broke a couple starter motors, lol-i never ran or dyno'ed it, so dont know how much power it had, but i beat a guy pretty good who ran in the high 11's
i had a chance to test drive one of the Procharged Big bikes, they def get it done

I built one of those back in the early 80s. It would fly! I called it my TT racer (tavern to tavern). It was a real bear to start with 5" wheels in it and did throw me over the handlebars once when I didn't follow the correct sequence in starting it. I considered it a safety feature because if I had too much to drink it wouldn't start. A friend took a picture of me on it and at 6'4" and 300# it looked like I was riding a minibike. I sold it to my BIL and bought a full sized Willy G Wide Glide.

I never make mistakes, but on occasion I present myself with an opportunity to get very creative.

dam you Rowdy, now you got me thinking of building another one-when i sold my 1200, i fig i was done with bikes, (prod had 30-40 over the years) but dam i love that sound, lol
maybe when the newest chevelle project is done, and there is a deal out there!!!!